检索结果-南通市图书馆

维普期刊数据库博看期刊

Factors associated with red blood cell transfusion among hospitalized patients: a cross-sectional study

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2021年第12期22卷 1060-1064页

作者： peiwen ZHANG Dandan xu Xinhan ZHANG Mengyin WU xuecheng YAO Dawei CUI Jue XIE Department of Blood Transfusion the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Epidemiology and Biostatistics Zhejiang University School of Public HealthHangzhou 310058China

Red blood cell(RBC)transfusion is a clinically effective therapy in anemia,for example in patients with malignancies(Shander et al.,2020),bleeding(Odutayo et al.,2017),and preoperative anemia(Pad-manabhan et al.,2019).The past few decades have witnessed a shortage of blood for transfusion due to limited health insurance coverage for blood use and the rapid expansion of hospitals(Chen et al.,2011;Shi et al.,2014).Blood donation levels may easily be affected by general changes in the environment,policy,major events such as disasters,and public sentiment(Hu et al.,2019).

关键词： transfusion patients

Saturation Functions Based Control for Series Elastic Actuator with Feedback Linearization

在线全文

学校读者我要写书评

暂无评论

Saturation Functions Based Control for Series Elastic Actuat...

Erratum to:Improving near-infrared quantum-dot light-emitting diodes to mimic synaptic plasticity(vol 62,issue 10,page 1470,2019)

第40届中国控制会议

作者： Tianjun Zha peiwen Li Yucheng xu Xinru Gong Lei Sun Institute of Robotics and Automatic Information System Nankai University Tianjin Key Laboratory of Intelligent Robotics

In this paper, a saturation functions based control law with feedback linearization（FL） is proposed for the trajectory tracking control of a series elastic actuator（SEA） system. A feedback-based stabilisation-bounded control action shaped by saturation functions is designed. The controller consists of two parts, one is a feedforward controller which guarantees high order tracking errors converge to a small region, the other is a feedback controller which brings the entire state errors of the SEA system asymptotically converge to zero. In the second part of controller, the saturation function is not unique. Closed-loop stability is established by the Lyapunov method and La Salle s invariance principle. The effectiveness of the proposed control strategy is verified by simulations and experiments based on a SEA-driven robot arm.

关键词： Series Elastic Actuator Feedback Linearization Saturation Functions Tracking Control

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China Materials 2021年第12期64卷 3138-3139页

作者： Shuangyi Zhao Yue Wang Wen Huang Hao Jin peiwen Huang Hu Wang Kun Wang Dongsheng Li Mingsheng xu Deren Yang Xiaodong Pi State Key Laboratory of Silicon Materials&School of Materials Science and Engineering Zhejiang UniversityHangzhouZhejiang 310027China School of Information Science and Electronic Engineering Zhejiang UniversityHangzhouZhejiang 310027China

In the version of the article originally published in the volume 62,issue 10,2019 of *** Mater,(page 1470-1478,https://***/10.1007/s40843-019-9437-9),wrong images of Figs 3 and 4 were *** corrected version appears bel... 详细信息

关键词： plasticity originally wrong

Viral receptor profiles of masked palm civet revealed by single-cell transcriptomics

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2022年第11期49卷 1072-1075页

作者： peiwen Ding Haoyu Wang Jiacheng Zhu Fuyu An Jinqian xu Xiangning Ding Lihua Luo Weiying Wu Qiuyu Qin Yanan Wei Wandong Zhao Zhiyuan Lv Haimeng Li Yixin Zhu Meiling Li Wensheng Zhang Yanan Zhang Zhihua Ou Huan Liu Yan Hua College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China BGI-Shenzhen ShenzhenGuangdong 518083China Guangdong Provincial Key Laboratory of Silviculture Protection and UtilizationGuangdong Academy of ForestryGuangzhouGuangdong 510520China Department of Neurobiology NHC and CAMS Key Laboratory of Medical NeurobiologySchool of Brain Science and Brian Medicineand the MOE Frontier Science Center for Brain Research and Brain–Machine IntegrationZhejiang University School of MedicineHangzhouZhejiang 310012China School of Basic Medicine Qingdao UniversityQingdaoShandong 266071China School of Basic Medical Sciences Binzhou Medical UniversityYantaiShandong 264003China Tsinghua-Berkeley Shenzhen Institute Tsinghua UniversityShenzhenGuangdong 518000China Shenzhen Key Laboratory of Unknown Pathogen Identification BGI-ShenzhenShenzhenGuangdong 518083China

Civets are small mammals belonging to the family *** masked palm civets(Paguma larvata)served as an intermediate host in the bat-to-human transmission of severe acute respiratory syndrome coronavirus(SARS-Co V)in 2003(Guan et al.,2003).Because of their unique role in the SARS outbreak,civets were suspected as a potential intermediate host of SARS-Co V-2.

关键词： Vive mask intermediate

Assessing the risk of spread of Zika virus under current and future climate scenarios

在线全文

学校读者我要写书评

暂无评论

Biosafety and Health 2022年第3期4卷 193-204页

作者： Ye xu Jingni Zhou Tong Liu peiwen Liu Yang Wu Zetian Lai Jinbao Gu Xiaoguang Chen Department of Pathogen Biology Key Laboratory of Tropical Disease Research of Guangdong ProvinceSchool of Public HealthSouthern Medical UniversityGuangzhou 510515China Institute of Tropical Medicine School of Public HealthSouthern Medical UniversityGuangzhou 510515China

Zika virus(ZIKV)may cause severe microcephaly in newborn babies and Guillain‐Barrésyndrome in some *** recent decades,its range has expanded in 86 *** are two ecologically and evolutionarily district cycles:urban cycle and sylvatic *** work aimed to estimate the urban and sylvatic cycle areas of ZIKV throughout the *** occurrence records of vectors,non‐human primate hosts,and ZIKV were *** chose historical climate data,predicted vectors distribution,human population density,and elevation data as the variables to fit the maximum entropy model(MaxEnt).Current risk area and future prediction were performed with global climate models(GCMs)and shared socioeconomic pathways(SSPs).Predicting the ZIKV risk area would help tailor related control *** results indicated that 16.6%of the world’s landmass(except Antarctica)is a risk area in the urban *** 6.22 billion people(78.69%of the global population)live in the risk area,with the vast majority in South Asia,tropical Africa,South America,North America,and countries around the Mediterranean *** climate change decreases the risk area of *** study also suggested that the sylvatic cycle happened between the Tropic of Cancer and the Tropic of *** overlap region of the urban and sylvatic cycles could be hotpots that ZIKV spill from the sylvatic to the urban *** is indicated that long‐term passenger screening,mosquito surveillance,and control are necessary.

关键词： Zika virus Aedes aegypti Aedes albopictus Species distribution modeling MaxEnt Urban cycle Sylvatic cycle

A chromosome-level genome assembly for Dracaena cochinchinensis reveals the molecular basis of its longevity and formation of dragon’s blood

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2022年第6期3卷 89-103页

作者： Yanhong xu Kaijian Zhang Zhonglian Zhang Yang Liu Feifei Lv peiwen Sun Shixi Gao Qiuling Wang Cuicui Yu Jiemei Jiang Chuangjun Li Meifang Song Zhihui Gao Chun Sui Haitao Li Yue Jin Xinwei Guo Jianhe Wei Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine Ministry of Education&National Engineering Laboratory for Breeding of Endangered Medicinal MaterialsInstitute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100193China Hainan Branch of the Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical CollegeHaikou 570311China Yunnan Key Laboratory of Southern Medicine Utilization Yunnan Branch of the Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences and Peking Union Medical CollegeJinghong 666100China Novogene Bioinformatics Institute Beijing 100083China Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China

Dracaena,a remarkably long-lived and slowly maturing species of plant,is world famous for its ability to produce dragon’s blood,a precious traditional medicine used by different cultures since ancient ***,there is no detailed and high-quality genome available for this species at present;thus,the molecular mechanisms that underlie its important traits are largely *** factors seriously limit the protection and regeneration of this rare and endangered plant ***,we sequenced and assembled the genome of Dracaena cochinchinensis at the chromosome *** *** genome covers 1.21 Gb with a scaffold N50 of 50.06 Mb and encodes 31619 predicted protein-coding *** showed that *** has undergone two whole-genome duplications and two bursts of long terminal repeat *** expansion of two gene classes,cis-zeatin O-glucosyltransferase and small auxin upregulated RNA,were found to account for its longevity and slow *** transcription factors(bHLH and MYB)were found to be core regulators of the flavonoid biosynthesis pathway,and reactive oxygen species were identified as the specific signaling molecules responsible for the injuryinduced formation of dragon’s *** study provides high-quality genomic information relating to *** and significant insight into the molecular mechanisms responsible for its longevity and formation of dragon’s *** findings will facilitate resource protection and sustainable utilization of Dracaena.

关键词： genome Dracaena cochinchinensis dragon’s blood longevity flavonoid biosynthesis ROS

Lightweight and highly robust memristor-based hybrid neural networks for electroencephalogram signal processing

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2023年第7期32卷 582-590页

作者：童霈文徐晖孙毅汪泳州彭杰廖岑王伟李清江 College of Electronic Science and Technology National University of Defense TechnologyChangsha 410073China

Memristor-based neuromorphic computing shows great potential for high-speed and high-throughput signal processing applications,such as electroencephalogram(EEG)signal ***,the size of one-transistor one-resistor(1T1R)memristor arrays is limited by the non-ideality of the devices,which prevents the hardware implementation of large and complex *** this work,we propose the depthwise separable convolution and bidirectional gate recurrent unit(DSC-BiGRU)network,a lightweight and highly robust hybrid neural network based on 1T1R arrays that enables efficient processing of EEG signals in the temporal,frequency and spatial domains by hybridizing DSC and BiGRU *** network size is reduced and the network robustness is improved while ensuring the network classification *** the simulation,the measured non-idealities of the 1T1R array are brought into the network through statistical *** with traditional convolutional networks,the network parameters are reduced by 95%and the network classification accuracy is improved by 21%at a 95%array yield rate and 5%tolerable *** work demonstrates that lightweight and highly robust networks based on memristor arrays hold great promise for applications that rely on low consumption and high efficiency.

关键词： memristor lightweight robust hybrid neural networks depthwise separable convolution bidirectional gate recurrent unit(BiGRU) one-transistor one-resistor(1T1R)arrays

社会互动对中国城镇家庭校外教育支出的影响研究——基于CFPS2018截面数据

在线全文

学校读者我要写书评

暂无评论

教育与经济 2022年第6期38卷 56-65,76页

作者：许文彬李沛文厦门大学经济学院福建厦门361005

随着校外教育支出在家庭收入中所占比例的日益攀高,教育焦虑正在日益成为困扰中国城镇家庭的普遍问题,家庭间的社会互动则在其间发挥着重要作用。本文利用2018年中国家庭追踪调查(CFPS)截面数据,从家庭间的社会互动角度出发,研究其对家... 详细信息

随着校外教育支出在家庭收入中所占比例的日益攀高,教育焦虑正在日益成为困扰中国城镇家庭的普遍问题,家庭间的社会互动则在其间发挥着重要作用。本文利用2018年中国家庭追踪调查(CFPS)截面数据,从家庭间的社会互动角度出发,研究其对家庭校外教育支出的影响及其路径。研究结果表明:家庭间的社会互动对于家庭校外教育支出具有显著的正向促进作用,且其影响路径有内生社会互动效应和外生社会互动效应两种。论文进一步讨论了社会互动和家庭校外教育支出间关系的家庭收入异质性和地区异质性。最后论文对当前我国的校外教育监管和校内教育发展提出了若干政策思路。

关键词：社会互动中国城镇家庭校外教育支出

冻融循环作用对乳化沥青冷再生混合料抗剪性能的影响

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

材料导报 2016年第10期30卷 121-125页

作者：李志刚郝培文徐金枝长安大学道路结构与材料交通行业重点实验室西安710064

针对乳化沥青冷再生混合料进行反复冻融循环试验,测定不同冻融循环周期后试件的空隙率、贯入剪切强度及无侧限抗压强度,分析冻融循环作用下乳化沥青冷再生混合料力学性能、抗剪强度参数的衰变规律,同时通过扫描电镜(SEM)观察经冻融循环... 详细信息

针对乳化沥青冷再生混合料进行反复冻融循环试验,测定不同冻融循环周期后试件的空隙率、贯入剪切强度及无侧限抗压强度,分析冻融循环作用下乳化沥青冷再生混合料力学性能、抗剪强度参数的衰变规律,同时通过扫描电镜(SEM)观察经冻融循环后的混合料微观形貌。结果表明:经过10次冻融循环后,空隙率增大1%,力学强度下降幅度达到20%,而对冷再生混合料粘聚力影响最大,其下降幅度可达到60%;冻融循环过程中产生的膨胀应力及温度应力破坏了混合料内部水泥水化产物形成的立体网状结构,导致冷再生混合料力学性能及抗剪强度参数的衰减。

关键词：乳化沥青冷再生混合料冻融循环抗剪强度参数扫描电镜